Home / 708,048.64-977,107.20-385,758.70

Finding the Fourth Proportional to 708,048.64, 977,107.20 and 385,758.70

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Solution

The fourth proportional to 708,048.64, 977,107.20 and 385,758.70 is: 532,347.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,048.64 : 977,107.20 = 385,758.70 : x
  2. Step 2: Convert to fraction form
    708,048.64/977,107.20 = 385,758.70/x
  3. Step 3: Cross multiply
    708,048.64x = 977,107.20 × 385,758.70
  4. Step 4: Simplify right side
    708,048.64x = 376,927,607,009.40
  5. Step 5: Solve for x
    x = 376,927,607,009.40/708,048.64
  6. Step 6: Final answer
    x = 532,347.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.